igrigorik

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"

jordansissel

This DateTime#sec_fraction change is not documented as far as I can tell, at time of writing (2011/02/08).

The change is that sec_fraction in 1.8.x returns "fraction of a day" where in 1.9.x it returns "fraction of a second"

snack(~) % rvm ruby -e 'require "date"; p [RUBY_VERSION, RUBY_PLATFORM] => DateTime.now.sec_fraction.to_f' | sort           
{["1.8.6", "x86_64-linux"]=>3.69974537037037e-06}
{["1.8.7", "java"]=>5.72916666666667e-06}

{["1.8.7", "x86_64-linux"]=>2.9518287037037e-06}

noahcampbell

# Steps for turning on squid monitoring (until I have an rpm)

cat > /etc/collectd.d/squid << EOF
LoadPlugin exec
<Plugin exec>
        Exec deploy "/var/lib/releng/monitoring/squid"
</Plugin>
EOF

mkdir -p /var/lib/releng/monitoring

weakish

Roxterm solarized theme

Moved to https://github.com/weakish/roxterm-solarized-theme

karmi

Simplistic Full-Text Search With Redis's Sorted Sets

Howto

git clone git://gist.github.com/923934.git redisearch

cd redisearch

rkh

require 'sinatra/base'

class MyApp < Sinatra::Base
  @@my_app = {}
  def self.new(*) self < MyApp ? super : Rack::URLMap.new(@@my_app) end
  def self.map(url) @@my_app[url] = self end

  class FooController < MyApp
    map '/foo'

aeden

Currently the RubyGems index is stored as a Gzip file that is a marshalled array. Whenever Bundler needs to install a gem that is not yet installed it downloads the index, gunzips it and unmarshals it. It then looks for dependencies that are described in another file that is also a gzipped and marshalled file. There are several issues that arise from this setup:

• The full index must be downloaded and parsed, but does not contain dependency data, which must then be downloaded and parsed. This is a relatively time consuming process.
• The index must be centralized.

Additionally the gems themselves are currently centralized since there is nothing in the meta data that indicates where the gem should be downloaded from. However in order to allow this it is important to find ways of keeping the index from being poisoned (is this an issue in the centralized system?)

Dependency Resolution

karussell

# TO_FOLDER=/something
# FROM=/your-es-installation

DATE=`date +%Y-%m-%d_%H-%M`
TO=$TO_FOLDER/$DATE/
echo "rsync from $FROM to $TO"
# the first times rsync can take a bit long - do not disable flusing
rsync -a $FROM $TO

# now disable flushing and do one manual flushing

dkubb

rvm use @$(basename `pwd`) --create

tbranyen

// All navigation that is relative should be passed through the navigate
// method, to be processed by the router. If the link has a `data-bypass`
// attribute, bypass the delegation completely.
$(document).on("click", "a[href]:not([data-bypass])", function(evt) {
  // Get the absolute anchor href.
  var href = { prop: $(this).prop("href"), attr: $(this).attr("href") };
  // Get the absolute root.
  var root = location.protocol + "//" + location.host + Application.root;

  // Ensure the root is part of the anchor href, meaning it's relative.